Home / 19,795.46-27,312.80-12,142.80

Finding the Fourth Proportional to 19,795.46, 27,312.80 and 12,142.80

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Solution

The fourth proportional to 19,795.46, 27,312.80 and 12,142.80 is: 16,754.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,795.46 : 27,312.80 = 12,142.80 : x
  2. Step 2: Convert to fraction form
    19,795.46/27,312.80 = 12,142.80/x
  3. Step 3: Cross multiply
    19,795.46x = 27,312.80 × 12,142.80
  4. Step 4: Simplify right side
    19,795.46x = 331,653,807.13
  5. Step 5: Solve for x
    x = 331,653,807.13/19,795.46
  6. Step 6: Final answer
    x = 16,754.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.